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Study of the Effects of Accommodative Insufficiency Therapy (SEA IT)

Shasteen, Nahrain Mary
http://rave.ohiolink.edu/etdc/view?acc_num=osu1338337466

Abstract Details

2012, Master of Science, Ohio State University, Vision Science.
Accommodative insufficiency is a binocular vision disorder characterized by a decrease in age expected amplitudes of accommodation. This condition can result in symptoms of headaches, blurred vision and asthenopia. Vision therapy has been utilized in helping treat patients with accommodative insufficiency. The purpose of this study was to evaluate the repeatability of the Convergence Insufficiency Symptom Survey (CISS) in subjects with accommodative insufficiency. This study also examined the improvement in CISS scores following 8 weeks of weekly 1-hour office-based vision therapy with home reinforcement. Improvements in accommodation and vergence measures were also examined as part of this study. Subjects ages 9 to 30 were enrolled in the study. Measures of amplitudes of accommodation, accommodative facility, accommodative response, and vergence function were evaluated at baseline and were repeated following 8 weeks of vision therapy. Final outcome sensorimotor measures and CISS scores were collected by examiners masked to the subject’s progress and compliance with vision therapy. Using the method described by Bland-Altman, the CISS was found to be repeatable in subjects with accommodative insufficiency. The mean difference in scores between two administrations was 1.47 point with 95% limits of agreement of -5.19 and 8.13. Analysis using student’s t or the Wilcoxan sign rank test showed a statistically significant improvement in amplitudes of accommodation (AA) (p<0.001), monocular accommodative facility (MAF) (p≤.0009) and amplitude scaled monocular accommodative facility (MAF-S) (p≤.034). Statistically significant improvements in CISS scores were also noted (p=0.0003). Accommodative function is known to decrease with increasing age. Therefore, differences in improvements between adults and children were also investigated. The Kruskal-Wallis test showed statistically significant differences in improvements between age groups in AA, MAF, and CISS. The results of this study show that 8 weeks of weekly 1-hour office-based vision therapy and home reinforcement results in a decrease of symptoms and increase in accommodative measures in patients with accommodative insufficiency.
Marjean Taylor Kulp, OD, MS (Advisor)
Michael J. Earley, OD, PhD (Committee Member)
G. Lynn Mitchell, MAS (Committee Member)
Donald O. Mutti, OD, PhD (Committee Member)
96 p.
accommodation; accommodative insufficiency; binocular vision; vision therapy; accommodative therapy; orthoptics

Recommended Citations

Citations

  • Shasteen, N. M. (2012). Study of the Effects of Accommodative Insufficiency Therapy (SEA IT) [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338337466

    APA Style (7th edition)

  • Shasteen, Nahrain. Study of the Effects of Accommodative Insufficiency Therapy (SEA IT). 2012. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1338337466.

    MLA Style (8th edition)

  • Shasteen, Nahrain. "Study of the Effects of Accommodative Insufficiency Therapy (SEA IT)." Master's thesis, Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338337466

    Chicago Manual of Style (17th edition)

osu1338337466
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© 2012, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.